linux/arch/xtensa/kernel/time.c, branch v4.9

xtensa: clean up printk usage for boot/crash logging

2016-11-07T07:31:46Z

Convert printk(KERN_* to pr_* and printk's without level to pr_cont. This fixes torn register dumps, stack dumps, stack traces and timestamps in the middle of 'Calibrating CPU frequency' message. Also drop unused show_code and drop false comment about show_stack. Signed-off-by: Max Filippov

xtensa: rearrange CCOUNT calibration

2016-09-21T01:52:59Z

DT-enabled kernel should have a CPU node connected to a clock. This clock is the CCOUNT clock. Use old platform_calibrate_ccount call as a fallback when CPU node cannot be found or has no clock and in non-DT-enabled configurations. Drop no longer needed code that updates CPU clock-frequency property in the DT; drop DT-related code from the platform_calibrate_ccount too. Move of_clk_init to the top of time_init, so that clocks are initialized before CCOUNT calibration is attempted. Signed-off-by: Max Filippov

clocksource: cosmetic: Drop OF 'dependency' from symbols

2015-10-01T00:18:39Z

Seeing the 'of' characters in a symbol that is being called from ACPI seems to freak out people. So let's do a bit of pointless renaming so that these folks do feel at home. Signed-off-by: Marc Zyngier Acked-by: Catalin Marinas Reviewed-by: Hanjun Guo Acked-by: Thomas Gleixner Tested-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki

xtensa/time: Migrate to new 'set-state' interface

2015-08-10T09:41:07Z

Migrate xtensa driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Chris Zankel Cc: Max Filippov Cc: linux-xtensa@linux-xtensa.org Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano

xtensa: export ccount_freq

2014-01-19T16:00:48Z

Now that ccount_freq is used in udelay and ndelay it needs to be exported in order to be available to modules. Signed-off-by: Max Filippov

xtensa: initialize device tree clock sources

2014-01-14T20:24:05Z

Signed-off-by: Baruch Siach Signed-off-by: Max Filippov

xtensa: Switch to sched_clock_register()

2014-01-14T18:19:59Z

The 32 bit sched_clock interface now supports 64 bits. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Signed-off-by: Stephen Boyd Acked-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: clear timer IRQ unconditionally in its handler

2014-01-14T18:19:57Z

PIC irq_ack doesn't clear timer IRQ, because timer interrupt handler usually set up new timer by writing to ccompare register and thus clearing timer IRQ. However timer may not be set up in the IRQ handler, e.g. with tickless idle on SMP, or when CPU is going offline, leaving timer IRQ raised and making do_interrupt attempting to handle it forever. To fix this always write current value of ccompare SR chosen to be linux timer back to that SR on entry to timer interrupt handler. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: update clockevent setup for SMP

2014-01-14T18:19:55Z

Provide per-cpu ccount_timer objects and use them appropriately. Extract per-cpu clockevent setup function. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: mark ccount as continuous clocksource

2014-01-14T18:19:54Z

This allows ccount to be used as highres timer. Signed-off-by: Baruch Siach Signed-off-by: Max Filippov Signed-off-by: Chris Zankel